Floyd, hmmm. When I ran the "Sounds Download" from my IKM "My Products" page , the default directory was my ST3 directory. I selected it, and that worked for me.

I do dislike these convoluted Product Mangers that require you to go outside the Product Manager to actually manage your product. Doh!

DC Ron
BiaB Audiophile
Presonus Studio One
StudioCat DAW dual screen
Presonus Faderport 16
Too many guitars (is that a thing?)